A rough set view on Bayes' theorem

Rough set theory offers new perspective on Bayes’ theorem. The look on Bayes’ theorem offered by rough set theory reveals that any data set (decision table) satisfies the total probability theorem and Bayes’ theorem. These properties can be used directly to draw conclusions from objective data without referring to subjective prior knowledge and its revision if new evidence is available. Thus, the rough set view on Bayes’ theorem is rather objective in contrast to subjective “classical” interpretation of the theorem. © 2003 Wiley Periodicals, Inc.